ScheduledAction.cpp [plain text]
#include "config.h"
#include "ScheduledAction.h"
#include "ContentSecurityPolicy.h"
#include "DOMWindow.h"
#include "Document.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "JSDOMBinding.h"
#include "JSDOMWindow.h"
#include "JSMainThreadExecState.h"
#include "JSMainThreadExecStateInstrumentation.h"
#include "JSWorkerGlobalScope.h"
#include "ScriptController.h"
#include "ScriptExecutionContext.h"
#include "ScriptSourceCode.h"
#include "WorkerGlobalScope.h"
#include "WorkerThread.h"
#include <bindings/ScriptValue.h>
#include <runtime/JSLock.h>
using namespace JSC;
namespace WebCore {
std::unique_ptr<ScheduledAction> ScheduledAction::create(ExecState* exec, DOMWrapperWorld& isolatedWorld, ContentSecurityPolicy* policy)
{
JSValue v = exec->argument(0);
CallData callData;
if (getCallData(v, callData) == CallTypeNone) {
if (policy && !policy->allowEval(exec))
return nullptr;
String string = v.toString(exec)->value(exec);
if (exec->hadException())
return nullptr;
return std::unique_ptr<ScheduledAction>(new ScheduledAction(string, isolatedWorld));
}
return std::unique_ptr<ScheduledAction>(new ScheduledAction(exec, v, isolatedWorld));
}
ScheduledAction::ScheduledAction(ExecState* exec, JSValue function, DOMWrapperWorld& isolatedWorld)
: m_function(exec->vm(), function)
, m_isolatedWorld(&isolatedWorld)
{
for (size_t i = 2; i < exec->argumentCount(); ++i)
m_args.append(Strong<JSC::Unknown>(exec->vm(), exec->uncheckedArgument(i)));
}
void ScheduledAction::execute(ScriptExecutionContext& context)
{
if (is<Document>(context))
execute(downcast<Document>(context));
else
execute(downcast<WorkerGlobalScope>(context));
}
void ScheduledAction::executeFunctionInContext(JSGlobalObject* globalObject, JSValue thisValue, ScriptExecutionContext& context)
{
ASSERT(m_function);
JSLockHolder lock(context.vm());
CallData callData;
CallType callType = getCallData(m_function.get(), callData);
if (callType == CallTypeNone)
return;
ExecState* exec = globalObject->globalExec();
MarkedArgumentBuffer args;
size_t size = m_args.size();
for (size_t i = 0; i < size; ++i)
args.append(m_args[i].get());
InspectorInstrumentationCookie cookie = JSMainThreadExecState::instrumentFunctionCall(&context, callType, callData);
NakedPtr<Exception> exception;
if (is<Document>(context))
JSMainThreadExecState::call(exec, m_function.get(), callType, callData, thisValue, args, exception);
else
JSC::call(exec, m_function.get(), callType, callData, thisValue, args, exception);
InspectorInstrumentation::didCallFunction(cookie, &context);
if (exception)
reportException(exec, exception);
}
void ScheduledAction::execute(Document& document)
{
JSDOMWindow* window = toJSDOMWindow(document.frame(), *m_isolatedWorld);
if (!window)
return;
RefPtr<Frame> frame = window->impl().frame();
if (!frame || !frame->script().canExecuteScripts(AboutToExecuteScript))
return;
if (m_function)
executeFunctionInContext(window, window->shell(), document);
else
frame->script().executeScriptInWorld(*m_isolatedWorld, m_code);
}
void ScheduledAction::execute(WorkerGlobalScope& workerGlobalScope)
{
ASSERT(workerGlobalScope.thread().threadID() == currentThread());
WorkerScriptController* scriptController = workerGlobalScope.script();
if (m_function) {
JSWorkerGlobalScope* contextWrapper = scriptController->workerGlobalScopeWrapper();
executeFunctionInContext(contextWrapper, contextWrapper, workerGlobalScope);
} else {
ScriptSourceCode code(m_code, workerGlobalScope.url());
scriptController->evaluate(code);
}
}
}